Carlsbergia, a replacement name for Indiella Sautya, Tabachnick & Ingole, 2011 (Porifera: Aulocalycidae)

Gaudin, Jimmy (2019): Carlsbergia, a replacement name for Indiella Sautya, Tabachnick & Ingole, 2011 (Porifera: Aulocalycidae). Zootaxa 4571 (1): 145-146, DOI: 10.11646/zootaxa.4571.1.1

Macrommatias nom. nov., un nouveau nom de remplacement pour Chandleria Comellini, 1998 (Coleoptera, Staphylinidae), homonyme récent de Chandleria Yamaguti, 1959 (Cestoda, Anoplocephalidae).

International audienceA new replacement name, Macrommatias nom. nov., is proposed to replace the genus Chandleria Comellini, 1998 (Coleoptera, Staphylinidae), preoccupied by Chandleria Yamaguti, 1959 (Cestoda, Anoplocephalidae). Thus, five new combinations are established.Un nouveau nom de remplacement, Macrommatias nom. nov., est proposé en lieu et place du genre Chandleria Comellini, 1998 (Coleoptera, Staphylinidae), homonyme récent de Chandleria Yamaguti, 1959 (Cestoda, Anoplocephalidae). Cinq nouvelles combinaisons sont ainsi établies

Karlwernerius nom. nov., a new substitute name for the genus Wernerius Téocchi Sudre, Adlbauer & Jiroux, 2010 (Coleoptera, Cerambycidae), preoccupied by Wernerius Soleglad & Fet, 2008 (Scorpiones, Vaejovidae)

Gaudin, Jimmy, Sudre, Jérôme (2022): Karlwernerius nom. nov., a new substitute name for the genus Wernerius Téocchi Sudre, Adlbauer & Jiroux, 2010 (Coleoptera, Cerambycidae), preoccupied by Wernerius Soleglad & Fet, 2008 (Scorpiones, Vaejovidae). Zootaxa 5105 (4): 600-600, DOI: https://doi.org/10.11646/zootaxa.5105.4.

La situation concurrentielle des principaux secteurs bancaires européens entre 1993 et 2000 : quels enseignements pour la future structure des marchés financiers issue de l'UEM ?

The competition among European bank firms between 1993 and 2000 : what future for the European banking sector structure ? Aiming to estimate the impacts of EMU on the European banking sectors structure, this paper analyses the degree of competition among bank firms of the 4 major European continental banking sectors (Germany, France, Italy and Spain ones) between 1993 and 2000 using two main tools of the new industrial organization theory : the Panzar-Rosse (1987) and Lerner’s indexes. The first model allows to reject the monopolistic competition hypothesis for any of the represented sector for the whole 1993-2000 period. The second assessment, in spite of describing substantial differences between countries, does not globally show an increase of bank margins (or at least a stabilization for German, French and Italian banks) in the same period. On the whole, both kinds of indexes show how the high degree of competition persists within the European Union during the concerned period. JEL classification : F36, G21Ce travail évalue les conséquences de l’UEM sur la structure du système bancaire européen. Ainsi, il analyse le degré de concurrence existant entre les firmes constituant les 4 principaux secteurs bancaires européens continentaux (Allemagne, Espagne, France et Italie) entre 1993 et 2000, à l’aide du test de Panzar et Rosse (1987) et de l’indice de Lerner. Le premier test permet de rejeter l’hypothèse de concurrence monopolistique pour chacun des secteurs représentés sur la période. Dans le même temps, et malgré d’importantes différences entre les pays considérés, la seconde catégorie d’estimations ne montre globalement pas de croissance des marges bancaires. En conclusion, les estimations des deux instruments permettent d’observer le maintien d’une concurrence élevée sur les marchés bancaires européens sur la période étudiée. Classification JEL : F36, G21Boutillier Michel, Gaudin Jimmy, Grandperrin Stéphanie. La situation concurrentielle des principaux secteurs bancaires européens entre 1993 et 2000 : quels enseignements pour la future structure des marchés financiers issue de l'UEM ? . In: Revue d'économie financière, n°81, 2005. Fonctionnement des systèmes bancaires et financiers. pp. 15-42

Oloughlinia, a replacement name for Clarkiella Heding in Heding & Panning 1954 (Echinodermata: Holothuroidea: Sclerodactylidae)

Kroh, Andreas, Gaudin, Jimmy, Reich, Mike (2022): Oloughlinia, a replacement name for Clarkiella Heding in Heding & Panning 1954 (Echinodermata: Holothuroidea: Sclerodactylidae). Zootaxa 5178 (4): 397-399, DOI: https://doi.org/10.11646/zootaxa.5178.4.

Structural and Functional Characterization of Orcokinin B-like Neuropeptides in the Cuttlefish (Sepia officinalis)

International audienceThe cuttlefish (Sepia officinalis) is a Cephalopod mollusk that lives in the English Channel and breeds in coastal spawning grounds in spring. A previous work showed that the control of egg-laying is monitored by different types of regulators, among which neuropeptides play a major role. They are involved in the integration of environmental cues, and participate in the transport of oocytes in the genital tract and in the secretion of capsular products. This study addresses a family of neuropeptides recently identified and suspected to be involved in the control of the reproduction processes. Detected by mass spectrometry and immunocytochemistry in the nerve endings of the accessory sex glands of the females and ovary, these neuropeptides are also identified in the hemolymph of egg-laying females demonstrating that they also have a hormone-like role. Released in the hemolymph by the sub-esophageal mass, a region that innervates the genital tract and the neurohemal area of the vena cava, in in vitro conditions these neuropeptides modulated oocyte transport and capsular secretion. Finally, in silico analyses indicated that these neuropeptides, initially called FLGamide, had extensive structural homology with orcokinin B, which motivated their name change

Crustacean cardioactive peptides Expression, localization, structure, and a possible involvement in regulation of egg-laying in the cuttlefish Sepia officinalis

International audienceThe cuttlefish (Sepia officinalis) is a cephalopod mollusk distributed on the western European coast, in the West African Ocean and in the Mediterranean Sea. On the Normandy coast (France), cuttlefish is a target species of professional fishermen, so its reproduction strategy is of particular interest in the context of stock management. Egg-laying, which is coastal, is controlled by several types of regulators among which neuropeptides. The cuttlefish neuropeptidome was recently identified by Zatylny-Gaudin et al. (2016). Among the 38 neuropeptide families identified, some were significantly overexpressed in egg-laying females as compared to mature males. This study is focused on crustacean cardioactive peptides (CCAPs), a highly expressed neuropeptide family strongly suspected of being involved in the control of egg-laying. We investigated the functional and structural characterization and tissue mapping of CCAPs, as well as the expression patterns of their receptors. CCAPs appeared to be involved in oocyte transport through the oviduct and in mechanical secretion of capsular products. Immunocytochemistry revealed that the neuropeptides were localized throughout the central nervous system (CNS) and in the nerve endings of the glands involved in egg-capsule synthesis and secretion, i.e. the oviduct gland and the main nidamental glands. The CCAP receptor was expressed in these glands and in the subesophageal mass of the CNS. Multiple sequence alignments revealed a high level of conservation of CCAP protein precursors in Sepia officinalis and Loligo pealei, two cephalopod decapods. Primary sequences of CCAPs from the two species were fully conserved, and cryptic peptides detected in the nerve endings were also partially conserved, suggesting biological activity that remains unknown for the time being